Packing-ring.



M. 1. PETERS.

PACKING RlNG. APPLcAToN HLED 00113, e's.

Patented Jan. 2, 1917.

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MTTHEW J. PETERS, OF ST. LOUIS, MISSOURI.

PAGKING-RING.

Application filed October 13, 1916. Seria1fNo. 125,438.

To all whom it may concern:

Be it known that I, MATTHEW J. PETERS, a citizen of the United States, residing at St. Louis, in the State of "Missouri, have invented new and useful Improvements in Pedring-Rings, of which the following is a specification. i

rI`his invention relates lto packing rings the object in View being to produce a simple packing ring such as is now used in conjunction with the pistons of reciprocatory engines, said packingring embodying novel means for reliably expanding the body of the ring in order that the working face thereof may be yieldingly held in fiuid tight engagement with the 'wall ofthe cylinder in connection with which it operates.

A. further object of the invention is to provide a ring of the class' above referred to in which *the 'extremities of the ring have an overlap of such nature as to render the ring as a whole substantially leak proof.

i VVith the above and other objects in View, the invention consists in the novel construction, combination and arrangement of parts, herein fully described, iliustrated and claimed.

In the accompanying drawings-Figure 1 is a plan View of a ring embodying the present invention. Fig. 2 is an edge View thereof showing the lap joint. Fig. I3 is a cross section through the lapped ends of thering. Fig. 4: is a longitudinal section through the szme.

The ring is of the split variety and the body of the rin may have its outer: and inner faces 2 an 3, respectively either con- V centric or eccentric to each other asv may be' desired. One extremity of the body of the ring is rabbeted or cut awa at one side as shown ate and the other extremity of the ring is rabbeted or cut away'at the opposite side as shown at 5, said rabbets extending substantially half way through the body of the ring so that when the rabbeted extremities overlap each other, the entire ring will be of uniform thickness throughout. Each of the rabbeted extremities of the ring is formed in the meeting lface thereof with a half round groove or seat G extending longitudinally of the ring and terminating in a shoulder 7 in the shape of a half disk.

Specificatlon of Letters lPatent.

Patented Jan. 2, 19L..

the latter has lost .its resiliency' and this may be done at a very small expense where as When the. ordinary packing ring loses its life orfresiliency, it must be thrown away and an-entire new ring substituted therefor. The ring as a avhole may of course be manufact'ured'in various sizes to suit pistons and cylinders of different diameters and the spring 8 may be increased or diminished lin size and strength in accordance with varied conditions and requirements. v

I claim 2- 1. A split packing ring having the'v extremities thereof rabbeted on reverseA sides to overlap each other, the meeting faces of the llapped extre'mities being' ormed with grooved seats extending longitudinally of the ring and each substantiallyl semicircu;

lar in cross section and terniinating 4in a semi-disk-like shoulder, and a coiled expansion spring contained partly in one seat and partly in the other seat and bearing at its opposite extremities against said shoulders.

2. A split packing ring having'the'extremities thereof rabbeted on reverse sides to overlap each other, the meeting faces of the lapped extremities being formed with grooved seats extending longitudinally of A the ring and each substantiallyy semicircular in cross section and termin'atirg in ,a semidisk-like shoulder, and a coiled expansionA spring contained partly in one seat and: partly in the other seat and bearing at its opposite extremities against said shoulders,

said spring being detachably mounted in relation to the ends of the ring and beingheld 1in. place by reason of its shape and rosiliency.

In testimony whereof I afrlx my signatures ivm'r'innvvv J. Pnfrnns. i'

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